OSRS Boss Progression
Listed from easiest to hardest with best notable drops for Ironman and main accounts.
Tier 1 – Beginner Bosses
Obor (F2P Hill Giant Boss)
- Rune items (kite, longsword)
- Giant Key required
Bryophyta (F2P Moss Giant Boss)
- Nature Runes
- Bryophyta’s Staff
- Mossy Key required
Tier 2 – Early Game PvM
Barrows Brothers
- Barrows armor sets (Ahrim’s, Dharok’s, etc.)
- Blood/Chaos runes
Chaos Fanatic
- Odium Shard
- Malediction Shard
Crazy Archaeologist
- Rune crossbow
- Shard drops
Tier 3 – Midgame Bosses
Giant Mole
- Bird nests (used for Saradomin brews)
- High GP/hr with Falador hard diary
Dagannoth Kings (DKs)
- Warrior/Archer/Berserker/Seer's Rings
- Dragon axe
Venenatis / Vet’ion / Callisto
- Dragon pickaxe
- Ring drops, untradeables
- Wilderness-only
Tier 4 – Late Game PvM
Vorkath
- Dragonbone Necklace
- Dragon bolts, Rune items, GP stacks
- Elite diary boosts profit
Zulrah
- Serpentine Visage
- Tanzanite Fang, Magic Fang
- Snakeskin, scales
Thermonuclear Smoke Devil
- Occult Necklace
- Good Magic XP & Slayer-only
Tier 5 – Endgame / Group Bosses
Corporeal Beast
- Elysian/Arcane/Spectral Sigils
- Holy elixir
God Wars Dungeon (GWD)
- Bandos, Armadyl, Saradomin gear
- Godsword shards and hilts
Theatre of Blood / Chambers of Xeric
- Scythe, Twisted Bow, Ancestral Robes
- Endgame BiS equipment